CN106752746A - The method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique - Google Patents

The method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique Download PDF

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CN106752746A
CN106752746A CN201611160914.XA CN201611160914A CN106752746A CN 106752746 A CN106752746 A CN 106752746A CN 201611160914 A CN201611160914 A CN 201611160914A CN 106752746 A CN106752746 A CN 106752746A
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component
parts
propagating
self
pigment
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CN106752746B (en
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张瑞珠
李林杰
任洋洋
贾新杰
郭晓刚
严大考
韩林萍
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North China University of Water Resources and Electric Power
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    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
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    • C09D163/10—Epoxy resins modified by unsaturated compounds
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    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
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    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
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    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
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    • C23C28/027—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material including at least one metal matrix material comprising a mixture of at least two metals or metal phases or metal matrix composites, e.g. metal matrix with embedded inorganic hard particles, CERMET, MMC.
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    • C08L2205/00—Polymer mixtures characterised by other features
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    • C08L2205/00—Polymer mixtures characterised by other features
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Abstract

Method the invention discloses composite anti-corrosive coating is prepared using self- propagating melting and coating technique, is comprised the following steps that：（1）Aluminising is carried out at steel plate position to be welded, aluminized coating is obtained；（2）Prepare self- propagating solder flux：16.7 25.9 parts of Al, Cu255.1 70.3 parts of O, SnO210.2 14.8 parts, 1.7 2.5 parts of Zn, CaF21.1 1.7 parts, raw material chooses corresponding powder, and each raw material is well mixed；（3）By step（2）The self- propagating solder flux of preparation is in step（1）The aluminising layer surface of preparation carries out self- propagating cladding；（4）Prepare modified epoxy and deployed modified epoxy is sprayed on step（3）The self- propagating coating surface of preparation, you can composite anti-corrosive coating is obtained.Reduced the invention enables operation, flow shortens, process is simple, wherein self- propagating technology after start-up course of igniting once avoiding the need for further providing for it any energy.

Description

The method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique
Technical field
The invention belongs to combined anti-corrosion layer technical field, and in particular to one kind is prepared compound anti-using self- propagating melting and coating technique The method of rotten coating.
Background technology
With national economy and the sustainable development of capital construction, key state project and heavy construction it is etch-proof require More and more higher, large-scale steel equipment, component, pipeline propose requirement higher to coating, that is, require that coating has excellent anti- Rust Corrosion Protection, must there is good application property, adaptability and durability again.But, traditional epoxy anti-rust paint is to steel Body structure surface processing requirement is higher, when the engineering project run wants Painting in Maintenance, it is necessary to carry out secondary high-quality rust cleaning Treatment, every few years must be overhauled reprocesses coating of application again, to prevent steel corrosion.
Especially in key water control project, operating mode is sufficiently complex, and its surface coating will not only face the corruption of various soda acids in water Erosion, also faces the erosion of current, silt, and this corrosion-resistant abrasion coating to us proposes requirement very high, and general coating is difficult With competent；In addition, during the stoppage in transit of key water control project is overhauled, can be because the stoppage in transit of water conservancy machinery causes the damage for being difficult to make up Lose, therefore it is problem demanding prompt solution to invent a kind of abrasion resistant anticorrosive paint for being capable of permanently effective protection key water control project.
The content of the invention
In order to overcome the deficiencies in the prior art, the present invention to provide a kind of compound using the preparation of self- propagating melting and coating technique The method of corrosion-inhibiting coating.
The purpose of the present invention is realized in the following manner：
The method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique, is comprised the following steps that：
（1）Aluminising is carried out at steel plate position to be welded, the aluminized coating that thickness is for 10-300 μm is obtained；
（2）Prepare self- propagating solder flux：The self- propagating solder flux is prepared from the following raw materials in parts by weight：Al 16.7-25.9 parts, Cu2O 55.1-70.3 parts, SnO210.2-14.8 parts, Zn 1.7-2.5 parts, CaF21.1-1.7 parts, raw material chooses corresponding powder End, and each raw material is well mixed；
（3）By step（2）The self- propagating solder flux of preparation is in step（1）The aluminising layer surface of preparation carries out self- propagating cladding；
（4）Prepare modified epoxy：The modified epoxy includes first component and component B；
The first component is prepared from the following raw materials in parts by weight：31-44 parts of epoxy vinyl fat resin, epoxy resin 27-35 Part, glass flake 4-7 parts, pigment 13-17 parts, filler 4-7 parts, auxiliary agent 1.3-2.2 parts, diluent 2-4 parts；
The component B is prepared from the following raw materials in parts by weight：Polyamide curing agent 35-50 parts, pigment 13-17 parts, filler 4- 7 parts, anti-settling agent 0.7-1.2 parts, solvent 40-60 parts；
The first component is 10 with the mass ratio of component B：（1-1.2）；
（5）The preparation of first component：It is stirred during epoxy vinyl fat resin, auxiliary agent and diluent are put into dispersion machine, is stirred Time is 20-30min, and mixing speed is 90-100r/min, is subsequently adding epoxy resin, pigment and filler, stirs 15-25 Min, mixing speed is 110-120r/min, the mixture after stirring is transferred in sand mill and is ground, and is ground to fineness ≤ 60 μm, the mixture after grinding is transferred in dispersion machine, adds glass flake and stir 20-40 min, be eventually adding Diluent to the viscosity of gained first component be with apply -4 glasss of viscosity meters be 50-60s；
（6）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；
（7）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified epoxy in mass ratio, then Deployed modified epoxy is sprayed on step（3）The self- propagating coating surface of preparation, you can composite anti-corrosive coating is obtained.
The method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique, is comprised the following steps that：
（1）Aluminising is carried out at steel plate position to be welded, the aluminized coating that thickness is 170 μm is obtained；
（2）Prepare self- propagating solder flux：The self- propagating solder flux is prepared from the following raw materials in parts by weight：18 parts of Al, Cu2O 60 Part, SnO212 parts, 2 parts of Zn, CaF21.5 parts, raw material chooses corresponding powder, and each raw material is well mixed；
（3）By step（2）The self- propagating solder flux of preparation is in step（1）The aluminising layer surface of preparation carries out self- propagating cladding；
（4）Prepare modified epoxy：The modified epoxy includes first component and component B；
The first component is prepared from the following raw materials in parts by weight：40 parts of epoxy vinyl fat resin, 30 parts of epoxy resin, glass 5 parts of scale, 15 parts of pigment, 5 parts of filler, 2 parts of auxiliary agent, 2 parts of diluent；
The component B is prepared from the following raw materials in parts by weight：It is 50 parts of polyamide curing agent, 17 parts of pigment, 7 parts of filler, anti-settling 1 part of agent, 50 parts of solvent；
The first component is 10 with the mass ratio of component B：1.1；
（5）The preparation of first component：It is stirred during epoxy vinyl fat resin, auxiliary agent and diluent are put into dispersion machine, is stirred Time is 25min, and mixing speed is 100r/min, is subsequently adding epoxy resin, pigment and filler, stirs 20 min, stirring speed It is 115r/min to spend, and the mixture after stirring is transferred in sand mill and is ground, and fineness≤60 μm is ground to, after grinding Mixture be transferred in dispersion machine, add glass flake and stir 30 min, be eventually adding diluent to gained first component Viscosity be with apply -4 glasss of viscosity meters be 55s；
（6）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；
（7）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified epoxy in mass ratio, then Deployed modified epoxy is sprayed on step（3）The self- propagating coating surface of preparation, you can composite anti-corrosive coating is obtained.
The glass flake is the glass flake being surface-treated by silane coupler, and granularity is 200-300 mesh.
The step（5）The pigment of component A and the pigment of B component be phosphorus zinc white, epoxy iron red shop, titanium dioxide, trbasic zinc phosphate, One or more in N330 carbon blacks.
The step（5）It is mixed with calcium carbonate that the filler of component A and the filler of B component are 1000-1250 mesh talcum powder Compound, talcum powder is 4 with the mass ratio of calcium carbonate:3.
The auxiliary agent is that pigment affinity groups polymer copolymerization body dispersant, 606 defoamers, anti-sagging agent and modified urea are molten The mixture of liquid rheological agent, pigment affinity groups polymer copolymerization body dispersant：606 defoamers：Anti-sagging agent：Modified urea solution The mass ratio of rheological agent is 0.2:0.4:0.3:0.6.
The pigment affinity groups polymer copolymerization body dispersant is XH-9001 aqueous dispersions, SP-712 aqueous dispersions Agent, one or more in DP490 aqueous dispersions；Anti-sagging agent is NUVIS BEZ 75, byk410, the one kind in AT720 Or it is several；Modified urea solution rheological agent is DeuRheo201P, one or more in DeuRheo 202P, DeuRheo 211F.
The diluent is made up of the raw material of following weight portion：5 parts of dimethylbenzene, 4 parts of n-butanol, propylene glycol methyl ether acetate 1 part；The solvent is made up of the raw material of following weight portion：7 parts of dimethylbenzene, 3 parts of butanol；The anti-settling agent is that polyamide wax is anti-settling Agent 6900.
Relative to prior art, the beneficial effects of the invention are as follows：
（1）Reduced the invention enables operation, flow shortens, process is simple, and wherein self- propagating technology is once after start-up course of igniting Avoid the need for further providing for it any energy.
（2）The present invention has good corrosion resistance, and salt spray resistance does not bubble up to 2300 hours paint films, do not get rusty after testing. Also there is adhesive force very high, adhesive force is more than 12MPa.
（3）Due to the glass flake containing pigment volume concentration (PVC) higher in film, the alternately stacked arrangement in film is formed " labyrinth " effect, thus film has excellent shielding and permeability resistance, corrosion-resistant medium osmosis corrosion.
Specific embodiment
Embodiment 1：
The method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique, is comprised the following steps that：
（1）Aluminising is carried out at steel plate position to be welded, the aluminized coating that thickness is for 10-300 μm is obtained；
（2）Prepare self- propagating solder flux：The self- propagating solder flux is prepared from the following raw materials in parts by weight：Al 16.7-25.9 parts, Cu2O 55.1-70.3 parts, SnO210.2-14.8 parts, Zn 1.7-2.5 parts, CaF21.1-1.7 parts, raw material chooses corresponding powder End, and each raw material is well mixed；
（3）By step（2）The self- propagating solder flux of preparation is in step（1）The aluminising layer surface of preparation carries out self- propagating cladding；
（4）Prepare modified epoxy：The modified epoxy includes first component and component B；
First component is prepared from the following raw materials in parts by weight：31-44 parts of epoxy vinyl fat resin, epoxy resin 27-35 parts, glass 4-7 parts, pigment 13-17 parts, filler 4-7 parts, auxiliary agent 1.3-2.2 parts, diluent 2-4 parts of glass scale；
Component B is prepared from the following raw materials in parts by weight：Polyamide curing agent 35-50 parts, pigment 13-17 parts, filler 4-7 parts, Anti-settling agent 0.7-1.2 parts, solvent 40-60 parts；
First component is 10 with the mass ratio of component B：（1-1.2）；
（5）The preparation of first component：It is stirred during epoxy vinyl fat resin, auxiliary agent and diluent are put into dispersion machine, is stirred Time is 20-30min, and mixing speed is 90-100r/min, is subsequently adding epoxy resin, pigment and filler, stirs 15-25 Min, mixing speed is 110-120r/min, the mixture after stirring is transferred in sand mill and is ground, and is ground to fineness ≤ 60 μm, the mixture after grinding is transferred in dispersion machine, adds glass flake and stir 20-40 min, be eventually adding Diluent to the viscosity of gained first component be with apply -4 glasss of viscosity meters be 50-60s；
（6）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；
（7）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified epoxy in mass ratio, then Deployed modified epoxy is sprayed on step（3）The self- propagating coating surface of preparation, you can composite anti-corrosive coating is obtained.
The method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique, is comprised the following steps that：
（1）Aluminising is carried out at steel plate position to be welded, the aluminized coating that thickness is 170 μm is obtained；
（2）Prepare self- propagating solder flux：The self- propagating solder flux is prepared from the following raw materials in parts by weight：18 parts of Al, Cu2O 60 Part, SnO212 parts, 2 parts of Zn, CaF21.5 parts, raw material chooses corresponding powder, and each raw material is well mixed；
（3）By step（2）The self- propagating solder flux of preparation is in step（1）The aluminising layer surface of preparation carries out self- propagating cladding；
（4）Prepare modified epoxy：The modified epoxy includes first component and component B；
Institute's first component is prepared from the following raw materials in parts by weight：40 parts of epoxy vinyl fat resin, 30 parts of epoxy resin, glass squama 5 parts of piece, 15 parts of pigment, 5 parts of filler, 2 parts of auxiliary agent, 2 parts of diluent；
Component B is prepared from the following raw materials in parts by weight：50 parts of polyamide curing agent, 17 parts of pigment, 7 parts of filler, anti-settling agent 1 Part, 50 parts of solvent；
First component is 10 with the mass ratio of component B：1.1；
（5）The preparation of first component：It is stirred during epoxy vinyl fat resin, auxiliary agent and diluent are put into dispersion machine, is stirred Time is 25min, and mixing speed is 100r/min, is subsequently adding epoxy resin, pigment and filler, stirs 20 min, stirring speed It is 115r/min to spend, and the mixture after stirring is transferred in sand mill and is ground, and fineness≤60 μm is ground to, after grinding Mixture be transferred in dispersion machine, add glass flake and stir 30 min, be eventually adding diluent to gained first component Viscosity be with apply -4 glasss of viscosity meters be 55s；
（6）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；
（7）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified epoxy in mass ratio, then Deployed modified epoxy is sprayed on step（3）The self- propagating coating surface of preparation, you can composite anti-corrosive coating is obtained.
Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 200-300 mesh.
Step（5）The pigment of component A and the pigment of B component are phosphorus zinc white, epoxy iron red shop, titanium dioxide, trbasic zinc phosphate, N330 One or more in carbon black.
Step（5）The filler of component A and the filler of B component are the mixture of 1000-1250 mesh talcum powder and calcium carbonate, Talcum powder is 4 with the mass ratio of calcium carbonate:3.
Auxiliary agent is pigment affinity groups polymer copolymerization body dispersant, 606 defoamers, anti-sagging agent and modified urea solution stream Become the mixture of agent, pigment affinity groups polymer copolymerization body dispersant：606 defoamers：Anti-sagging agent：Modified urea solution rheology The mass ratio of agent is 0.2:0.4:0.3:0.6.
Pigment affinity groups polymer copolymerization body dispersant be XH-9001 aqueous dispersions, SP-712 aqueous dispersions, One or more in DP490 aqueous dispersions；Anti-sagging agent is NUVIS BEZ 75, byk410, the one kind or several in AT720 Kind；Modified urea solution rheological agent is DeuRheo201P, one or more in DeuRheo 202P, DeuRheo 211F.
Diluent is made up of the raw material of following weight portion：5 parts of dimethylbenzene, 4 parts of n-butanol, 1 part of propylene glycol methyl ether acetate； The solvent is made up of the raw material of following weight portion：7 parts of dimethylbenzene, 3 parts of butanol；The anti-settling agent is polyamide wax anti-settling agent 6900。
Embodiment 2：
The method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique, is comprised the following steps that：
（1）Aluminising is carried out at steel plate position to be welded, the aluminized coating that thickness is 10 μm is obtained；
（2）Prepare self- propagating solder flux：The self- propagating solder flux is prepared from the following raw materials in parts by weight：Al 16.7g, Cu2O 55.1g, SnO210.2g, Zn 1.7g, CaF21.1g, raw material chooses corresponding powder, and each raw material is well mixed；
（3）By step（2）The self- propagating solder flux of preparation is in step（1）The aluminising layer surface of preparation carries out self- propagating cladding；
（4）Prepare modified epoxy：The modified epoxy includes first component and component B；
First component is prepared from the following raw materials in parts by weight：Epoxy vinyl fat resin 31g, epoxy resin 27g, glass flake 4g, pigment 13g, filler 4g, auxiliary agent 1.3g, diluent 2g；
Component B is prepared from the following raw materials in parts by weight：Polyamide curing agent 35g, pigment 13g, filler 4g, anti-settling agent 0.7g, Solvent 40g；
First component is 10 with the mass ratio of component B：1；
（5）The preparation of first component：It is stirred during epoxy vinyl fat resin, auxiliary agent and diluent are put into dispersion machine, is stirred Time is 20min, and mixing speed is 90r/min, is subsequently adding epoxy resin, pigment and filler, stirs 15 min, mixing speed It is 110r/min, the mixture after stirring is transferred in sand mill and is ground, fineness≤60 μm is ground to, after grinding Mixture is transferred in dispersion machine, is added glass flake and is stirred 20min, is eventually adding diluent sticking to gained first component Degree be with apply -4 glasss of viscosity meters be 50s；
（6）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；
（7）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified epoxy in mass ratio, then Deployed modified epoxy is sprayed on step（3）The self- propagating coating surface of preparation, you can composite anti-corrosive coating is obtained.
Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 200 mesh.
Step（5）The pigment of component A and the pigment of B component are phosphorus zinc white.
Step（5）The filler of component A and the filler of B component are the mixture of calcium carbonate and 1000 mesh talcum powder, talcum Powder is 4 with the mass ratio of calcium carbonate:3.
Auxiliary agent is pigment affinity groups polymer copolymerization body dispersant, 606 defoamers, anti-sagging agent and modified urea solution stream Become the mixture of agent, pigment affinity groups polymer copolymerization body dispersant：606 defoamers：Anti-sagging agent：Modified urea solution rheology The mass ratio of agent is 0.2:0.4:0.3:0.6.
Pigment affinity groups polymer copolymerization body dispersant is XH-9001 aqueous dispersions；Anti-sagging agent is NUVIS BEZ 75；Modified urea solution rheological agent is DeuRheo201P.
Diluent is made up of the raw material of following weight portion：5 parts of dimethylbenzene, 4 parts of n-butanol, 1 part of propylene glycol methyl ether acetate； The solvent is made up of the raw material of following weight portion：7 parts of dimethylbenzene, 3 parts of butanol；The anti-settling agent is polyamide wax anti-settling agent 6900。
Embodiment 3：
The method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique, is comprised the following steps that：
（1）Aluminising is carried out at steel plate position to be welded, the aluminized coating that thickness is 30 μm is obtained；
（2）Prepare self- propagating solder flux：The self- propagating solder flux is prepared from the following raw materials in parts by weight：Al 17g, Cu2O 56g, SnO210.5g, Zn 1.8g, CaF21.2g, raw material chooses corresponding powder, and each raw material is well mixed；
（3）By step（2）The self- propagating solder flux of preparation is in step（1）The aluminising layer surface of preparation carries out self- propagating cladding；
（4）Prepare modified epoxy：The modified epoxy includes first component and component B；
First component is prepared from the following raw materials in parts by weight：Epoxy vinyl fat resin 32g, epoxy resin 28g, glass flake 4.4g, the g of pigment 13.4, the g of filler 4.4, the g of auxiliary agent 1.4, the g of diluent 2.2；
Component B is made up of the raw material of following percentage by weight：It is the g of polyamide curing agent 36, the g of pigment 13.4, the g of filler 4.4, anti- The heavy g of agent 0.75, the g of solvent 42；
First component is 10 with the mass ratio of component B：1.02；
（5）The preparation of first component：It is stirred during epoxy vinyl fat resin, auxiliary agent and diluent are put into dispersion machine, is stirred Time is 20min, and mixing speed is 90r/min, is subsequently adding epoxy resin, pigment and filler, stirs 15 min, mixing speed It is 110r/min, the mixture after stirring is transferred in sand mill and is ground, fineness≤60 μm is ground to, after grinding Mixture is transferred in dispersion machine, is added glass flake and is stirred 20min, is eventually adding diluent sticking to gained first component Degree be with apply -4 glasss of viscosity meters be 50s；
（6）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；
（7）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified epoxy in mass ratio, then Deployed modified epoxy is sprayed on step（3）The self- propagating coating surface of preparation, you can composite anti-corrosive coating is obtained.
Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 210 mesh.
Step（5）The pigment of component A and the pigment of B component are epoxy iron red shop.
Step（5）The filler of component A and the filler of B component are the mixture of calcium carbonate and 1025 mesh talcum powder, talcum Powder is 4 with the mass ratio of calcium carbonate:3.
Auxiliary agent is pigment affinity groups polymer copolymerization body dispersant, 606 defoamers, anti-sagging agent and modified urea solution stream Become the mixture of agent, pigment affinity groups polymer copolymerization body dispersant：606 defoamers：Anti-sagging agent：Modified urea solution rheology The mass ratio of agent is 0.2:0.4:0.3:0.6.
Pigment affinity groups polymer copolymerization body dispersant is SP-712 aqueous dispersions；Anti-sagging agent is byk410；Change Property urea solution rheological agent be DeuRheo 202P.
Other are with embodiment 2.
Embodiment 4：
The method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique, is comprised the following steps that：
（1）Aluminising is carried out at steel plate position to be welded, the aluminized coating that thickness is 50 μm is obtained；
（2）Prepare self- propagating solder flux：The self- propagating solder flux is prepared from the following raw materials in parts by weight：Al 18g, Cu2O 57g, SnO210.8g, Zn 1.9g, CaF21.25g, raw material chooses corresponding powder, and each raw material is well mixed；
（3）By step（2）The self- propagating solder flux of preparation is in step（1）The aluminising layer surface of preparation carries out self- propagating cladding；
（4）Prepare modified epoxy：The modified epoxy includes first component and component B；
First component is prepared from the following raw materials in parts by weight：Epoxy vinyl fat resin 34g, epoxy resin 29g, glass flake 4.8g, the g of pigment 13.7, the g of filler 4.8, auxiliary agent 1.5g, the g of diluent 2.4；
Component B is made up of the raw material of following percentage by weight：It is the g of polyamide curing agent 38, the g of pigment 13.7, the g of filler 4.8, anti- The heavy g of agent 0.8, the g of solvent 44；
First component is 10 with the mass ratio of component B：1.04；
（5）The preparation of first component：It is stirred during epoxy vinyl fat resin, auxiliary agent and diluent are put into dispersion machine, is stirred Time is 22min, and mixing speed is 92r/min, is subsequently adding epoxy resin, pigment and filler, stirs 17 min, mixing speed It is 112r/min, the mixture after stirring is transferred in sand mill and is ground, fineness≤60 μm is ground to, after grinding Mixture is transferred in dispersion machine, is added glass flake and is stirred 24 min, is eventually adding diluent to gained first component Viscosity be with apply -4 glasss of viscosity meters be 52s；
（6）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；
（7）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified epoxy in mass ratio, then Deployed modified epoxy is sprayed on step（3）The self- propagating coating surface of preparation, you can composite anti-corrosive coating is obtained.
Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 220 mesh.
Step（5）The pigment of component A and the pigment of B component are titanium dioxide.
Step（5）The filler of component A and the filler of B component are the mixture of calcium carbonate and 1050 mesh talcum powder, talcum Powder is 4 with the mass ratio of calcium carbonate:3.
Auxiliary agent is pigment affinity groups polymer copolymerization body dispersant, 606 defoamers, anti-sagging agent and modified urea solution stream Become the mixture of agent, pigment affinity groups polymer copolymerization body dispersant：606 defoamers：Anti-sagging agent：Modified urea solution rheology The mass ratio of agent is 0.2:0.4:0.3:0.6.
Pigment affinity groups polymer copolymerization body dispersant is DP490 aqueous dispersions；Anti-sagging agent is AT720；It is modified Urea solution rheological agent is DeuRheo 211F.
Other are with embodiment 2.
Embodiment 5：
The method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique, is comprised the following steps that：
（1）Aluminising is carried out at steel plate position to be welded, the aluminized coating that thickness is 80 μm is obtained；
（2）Prepare self- propagating solder flux：The self- propagating solder flux is prepared from the following raw materials in parts by weight：Al 19g, Cu2O 58g, SnO211g, Zn 2.0g, CaF21.3g, raw material chooses corresponding powder, and each raw material is well mixed；
（3）By step（2）The self- propagating solder flux of preparation is in step（1）The aluminising layer surface of preparation carries out self- propagating cladding；
（4）Prepare modified epoxy：The modified epoxy includes first component and component B；
First component is prepared from the following raw materials in parts by weight：Epoxy vinyl fat resin 35g, epoxy resin 30g, glass flake 5g, the g of pigment 14, the g of filler 5, auxiliary agent 1.6g, the g of diluent 2.6；
Component B is made up of the raw material of following percentage by weight：The g of polyamide curing agent 40, the g of pigment 14, the g of filler 5, anti-settling agent 0.85 g, the g of solvent 46；
First component is 10 with the mass ratio of component B：1.06；
（5）The preparation of first component：It is stirred during epoxy vinyl fat resin, auxiliary agent and diluent are put into dispersion machine, is stirred Time is 23min, and mixing speed is 93r/min, is subsequently adding epoxy resin, pigment and filler, stirs 18 min, mixing speed It is 113r/min, the mixture after stirring is transferred in sand mill and is ground, fineness≤60 μm is ground to, after grinding Mixture is transferred in dispersion machine, is added glass flake and is stirred 26 min, is eventually adding diluent to gained first component Viscosity be with apply -4 glasss of viscosity meters be 53s；
（6）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；
（7）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified epoxy in mass ratio, then Deployed modified epoxy is sprayed on step（3）The self- propagating coating surface of preparation, you can composite anti-corrosive coating is obtained.
Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 230 mesh.
Step（5）The pigment of component A and the pigment of B component are trbasic zinc phosphate.
Step（5）The filler of component A and the filler of B component are the mixture of calcium carbonate and 1075 mesh talcum powder, talcum Powder is 4 with the mass ratio of calcium carbonate:3.
Auxiliary agent is pigment affinity groups polymer copolymerization body dispersant, 606 defoamers, anti-sagging agent and modified urea solution stream Become the mixture of agent, pigment affinity groups polymer copolymerization body dispersant：606 defoamers：Anti-sagging agent：Modified urea solution rheology The mass ratio of agent is 0.2:0.4:0.3:0.6.
Pigment affinity groups polymer copolymerization body dispersant is XH-9001 aqueous dispersions and SP-712 aqueous dispersions； Anti-sagging agent is NUVIS BEZ 75 and byk410；Modified urea solution rheological agent is DeuRheo201P and DeuRheo 202P.
Other are with embodiment 2.
Embodiment 6：
The method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique, is comprised the following steps that：
（1）Aluminising is carried out at steel plate position to be welded, the aluminized coating that thickness is 100 μm is obtained；
（2）Prepare self- propagating solder flux：The self- propagating solder flux is prepared from the following raw materials in parts by weight：Al 20g, Cu2O 60g, SnO211.2g, Zn 2.1g, CaF21.35g, raw material chooses corresponding powder, and each raw material is well mixed；
（3）By step（2）The self- propagating solder flux of preparation is in step（1）The aluminising layer surface of preparation carries out self- propagating cladding；
（4）Prepare modified epoxy：The modified epoxy includes first component and component B；
First component is prepared from the following raw materials in parts by weight：Epoxy vinyl fat resin 36g, epoxy resin 31g, glass flake 5.4g, the g of pigment 14.4, the g of filler 5.4, auxiliary agent 1.7g, the g of diluent 2.8；
Component B is made up of the raw material of following percentage by weight：It is the g of polyamide curing agent 42, the g of pigment 14.4, the g of filler 5.4, anti- The heavy g of agent 0.9, the g of solvent 48；
First component is 10 with the mass ratio of component B：1.08；
（5）The preparation of first component：It is stirred during epoxy vinyl fat resin, auxiliary agent and diluent are put into dispersion machine, is stirred Time is 24min, and mixing speed is 94r/min, is subsequently adding epoxy resin, pigment and filler, stirs 19 min, mixing speed It is 114r/min, the mixture after stirring is transferred in sand mill and is ground, fineness≤60 μm is ground to, after grinding Mixture is transferred in dispersion machine, is added glass flake and is stirred 28 min, is eventually adding diluent to gained first component Viscosity be with apply -4 glasss of viscosity meters be 54s；
（6）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；
（7）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified epoxy in mass ratio, then Deployed modified epoxy is sprayed on step（3）The self- propagating coating surface of preparation, you can composite anti-corrosive coating is obtained.
Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 240 mesh.
Step（5）The pigment of component A and the pigment of B component are N330 carbon blacks.
Step（5）The filler of component A and the filler of B component are the mixture of calcium carbonate and 1100 mesh talcum powder, talcum Powder is 4 with the mass ratio of calcium carbonate:3.
Auxiliary agent is pigment affinity groups polymer copolymerization body dispersant, 606 defoamers, anti-sagging agent and modified urea solution stream Become the mixture of agent, pigment affinity groups polymer copolymerization body dispersant：606 defoamers：Anti-sagging agent：Modified urea solution rheology The mass ratio of agent is 0.2:0.4:0.3:0.6.
Pigment affinity groups polymer copolymerization body dispersant is XH-9001 aqueous dispersions and DP490 aqueous dispersions；It is anti- Sagging agent is NUVIS BEZ 75 and AT720；Modified urea solution rheological agent is DeuRheo201P and DeuRheo 211F.
Other are with embodiment 2.
Embodiment 7：
The method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique, is comprised the following steps that：
（1）Aluminising is carried out at steel plate position to be welded, the aluminized coating that thickness is 120 μm is obtained；
（2）Prepare self- propagating solder flux：The self- propagating solder flux is prepared from the following raw materials in parts by weight：Al 21g, Cu2O 62g, SnO211.5g, Zn 2.15g, CaF21.4g, raw material chooses corresponding powder, and each raw material is well mixed；
（3）By step（2）The self- propagating solder flux of preparation is in step（1）The aluminising layer surface of preparation carries out self- propagating cladding；
（4）Prepare modified epoxy：The modified epoxy includes first component and component B；
First component is prepared from the following raw materials in parts by weight：Epoxy vinyl fat resin 38g, epoxy resin 32g, glass flake 5.7g, the g of pigment 14.7, the g of filler 5.7, auxiliary agent 1.8g, the g of diluent 3；
Component B is made up of the raw material of following percentage by weight：It is the g of polyamide curing agent 43, the g of pigment 14.7, the g of filler 5.7, anti- The heavy g of agent 0.95, the g of solvent 50；
First component is 10 with the mass ratio of component B：1.1；
（5）The preparation of first component：It is stirred during epoxy vinyl fat resin, auxiliary agent and diluent are put into dispersion machine, is stirred Time is 25min, and mixing speed is 95r/min, is subsequently adding epoxy resin, pigment and filler, stirs 20 min, mixing speed It is 115r/min, the mixture after stirring is transferred in sand mill and is ground, fineness≤60 μm is ground to, after grinding Mixture is transferred in dispersion machine, is added glass flake and is stirred 30 min, is eventually adding diluent to gained first component Viscosity be with apply -4 glasss of viscosity meters be 55s；
（6）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；
（7）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified epoxy in mass ratio, then Deployed modified epoxy is sprayed on step（3）The self- propagating coating surface of preparation, you can composite anti-corrosive coating is obtained.
Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 250 mesh.
Step（5）The pigment of component A and the pigment of B component are phosphorus zinc white and epoxy iron red shop.
Step（5）The filler of component A and the filler of B component are the mixture of calcium carbonate and 1125 mesh talcum powder, talcum Powder is 4 with the mass ratio of calcium carbonate:3.
Auxiliary agent is pigment affinity groups polymer copolymerization body dispersant, 606 defoamers, anti-sagging agent and modified urea solution stream Become the mixture of agent, pigment affinity groups polymer copolymerization body dispersant：606 defoamers：Anti-sagging agent：Modified urea solution rheology The mass ratio of agent is 0.2:0.4:0.3:0.6.
Pigment affinity groups polymer copolymerization body dispersant is SP-712 aqueous dispersions and DP490 aqueous dispersions；It is anti- Sagging agent is byk410 and AT720；Modified urea solution rheological agent is DeuRheo 202P and DeuRheo 211F.
Other are with embodiment 2.
Embodiment 8：
The method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique, is comprised the following steps that：
（1）Aluminising is carried out at steel plate position to be welded, the aluminized coating that thickness is 150 μm is obtained；
（2）Prepare self- propagating solder flux：The self- propagating solder flux is prepared from the following raw materials in parts by weight：Al 22g, Cu2O 64g, SnO212g, Zn 2.2g, CaF21.45g, raw material chooses corresponding powder, and each raw material is well mixed；
（3）By step（2）The self- propagating solder flux of preparation is in step（1）The aluminising layer surface of preparation carries out self- propagating cladding；
（4）Prepare modified epoxy：The modified epoxy includes first component and component B；
First component is prepared from the following raw materials in parts by weight：Epoxy vinyl fat resin 39g, epoxy resin 33g, glass flake 6g, the g of pigment 15, the g of filler 6, auxiliary agent 1.9g, the g of diluent 3.2；
Component B is made up of the raw material of following percentage by weight：The g of polyamide curing agent 44, the g of pigment 15, the g of filler 6, anti-settling agent 1 g, the g of solvent 52；
First component is 10 with the mass ratio of component B：1.12；
（5）The preparation of first component：It is stirred during epoxy vinyl fat resin, auxiliary agent and diluent are put into dispersion machine, is stirred Time is 26min, and mixing speed is 96r/min, is subsequently adding epoxy resin, pigment and filler, stirs 21 min, mixing speed It is 116r/min, the mixture after stirring is transferred in sand mill and is ground, fineness≤60 μm is ground to, after grinding Mixture is transferred in dispersion machine, is added glass flake and is stirred 32 min, is eventually adding diluent to gained first component Viscosity be with apply -4 glasss of viscosity meters be 56s；
（6）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；
（7）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified epoxy in mass ratio, then Deployed modified epoxy is sprayed on step（3）The self- propagating coating surface of preparation, you can composite anti-corrosive coating is obtained.
Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 260 mesh.
Step（5）The pigment of component A and the pigment of B component are phosphorus zinc white and titanium dioxide.
Step（5）The filler of component A and the filler of B component are the mixture of calcium carbonate and 1150 mesh talcum powder, talcum Powder is 4 with the mass ratio of calcium carbonate:3.
Auxiliary agent is pigment affinity groups polymer copolymerization body dispersant, 606 defoamers, anti-sagging agent and modified urea solution stream Become the mixture of agent, pigment affinity groups polymer copolymerization body dispersant：606 defoamers：Anti-sagging agent：Modified urea solution rheology The mass ratio of agent is 0.2:0.4:0.3:0.6.
Pigment affinity groups polymer copolymerization body dispersant be XH-9001 aqueous dispersions, SP-712 aqueous dispersions and DP490 aqueous dispersions；Anti-sagging agent is NUVIS BEZ 75, byk410 and AT720；Modified urea solution rheological agent is DeuRheo201P, DeuRheo 202P and DeuRheo 211F.
Other are with embodiment 2.
Embodiment 9：
The method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique, is comprised the following steps that：
（1）Aluminising is carried out at steel plate position to be welded, the aluminized coating that thickness is 200 μm is obtained；
（2）Prepare self- propagating solder flux：The self- propagating solder flux is prepared from the following raw materials in parts by weight：Al 23g, Cu2O 65g, SnO212.5g, Zn 2.25g, CaF21.5g, raw material chooses corresponding powder, and each raw material is well mixed；
（3）By step（2）The self- propagating solder flux of preparation is in step（1）The aluminising layer surface of preparation carries out self- propagating cladding；
（4）Prepare modified epoxy：The modified epoxy includes first component and component B；
First component is prepared from the following raw materials in parts by weight：Epoxy vinyl fat resin 40g, epoxy resin 34g, glass flake 6.2g, the g of pigment 15.5, the g of filler 6.2, auxiliary agent 2.0g, the g of diluent 3.4；
Component B is made up of the raw material of following percentage by weight：It is the g of polyamide curing agent 45, the g of pigment 15.5, the g of filler 6.2, anti- The heavy g of agent 1.05, the g of solvent 54；
First component is 10 with the mass ratio of component B：1.14；
（5）The preparation of first component：It is stirred during epoxy vinyl fat resin, auxiliary agent and diluent are put into dispersion machine, is stirred Time is 27min, and mixing speed is 97r/min, is subsequently adding epoxy resin, pigment and filler, stirs 22 min, mixing speed It is 117r/min, the mixture after stirring is transferred in sand mill and is ground, fineness≤60 μm is ground to, after grinding Mixture is transferred in dispersion machine, is added glass flake and is stirred 34 min, is eventually adding diluent to gained first component Viscosity be with apply -4 glasss of viscosity meters be 57s；
（6）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；
（7）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified epoxy in mass ratio, then Deployed modified epoxy is sprayed on step（3）The self- propagating coating surface of preparation, you can composite anti-corrosive coating is obtained.
Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 270 mesh.
Step（5）The pigment of component A and the pigment of B component are phosphorus zinc white and trbasic zinc phosphate.
Step（5）The filler of component A and the filler of B component are the mixture of calcium carbonate and 1175 mesh talcum powder, talcum Powder is 4 with the mass ratio of calcium carbonate:3.
Auxiliary agent is pigment affinity groups polymer copolymerization body dispersant, 606 defoamers, anti-sagging agent and modified urea solution stream Become the mixture of agent, pigment affinity groups polymer copolymerization body dispersant：606 defoamers：Anti-sagging agent：Modified urea solution rheology The mass ratio of agent is 0.2:0.4:0.3:0.6.
Pigment affinity groups polymer copolymerization body dispersant is XH-9001 aqueous dispersions；Anti-sagging agent is NUVIS BEZ 75；Modified urea solution rheological agent is DeuRheo 202P.
Other are with embodiment 2.
Embodiment 10：
The method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique, is comprised the following steps that：
（1）Aluminising is carried out at steel plate position to be welded, the aluminized coating that thickness is 220 μm is obtained；
（2）Prepare self- propagating solder flux：The self- propagating solder flux is prepared from the following raw materials in parts by weight：Al 24g, Cu2O 66g, SnO213g, Zn 2.3g, CaF21.6g, raw material chooses corresponding powder, and each raw material is well mixed；
（3）By step（2）The self- propagating solder flux of preparation is in step（1）The aluminising layer surface of preparation carries out self- propagating cladding；
（4）Prepare modified epoxy：The modified epoxy includes first component and component B；
First component is prepared from the following raw materials in parts by weight：Epoxy vinyl fat resin 42g, epoxy resin 35g, glass flake 6.5g, the g of pigment 16, the g of filler 6.5, auxiliary agent 2.1g, the g of diluent 3.6；
Component B is made up of the raw material of following percentage by weight：It is the g of polyamide curing agent 46, the g of pigment 16, the g of filler 6.5, anti-settling The g of agent 1.1, solvent 56g；
First component is 10 with the mass ratio of component B：1.16；
（5）The preparation of first component：It is stirred during epoxy vinyl fat resin, auxiliary agent and diluent are put into dispersion machine, is stirred Time is 28min, and mixing speed is 98r/min, is subsequently adding epoxy resin, pigment and filler, stirs 23 min, mixing speed It is 118r/min, the mixture after stirring is transferred in sand mill and is ground, fineness≤60 μm is ground to, after grinding Mixture is transferred in dispersion machine, is added glass flake and is stirred 36 min, is eventually adding diluent to gained first component Viscosity be with apply -4 glasss of viscosity meters be 58s；
（6）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；
（7）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified epoxy in mass ratio, then Deployed modified epoxy is sprayed on step（3）The self- propagating coating surface of preparation, you can composite anti-corrosive coating is obtained.
Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 280 mesh.
Step（5）The pigment of component A and the pigment of B component are phosphorus zinc white and N330 carbon blacks.
Step（5）The filler of component A and the filler of B component are the mixture of calcium carbonate and 1200 mesh talcum powder, talcum Powder is 4 with the mass ratio of calcium carbonate:3.
Auxiliary agent is pigment affinity groups polymer copolymerization body dispersant, 606 defoamers, anti-sagging agent and modified urea solution stream Become the mixture of agent, pigment affinity groups polymer copolymerization body dispersant：606 defoamers：Anti-sagging agent：Modified urea solution rheology The mass ratio of agent is 0.2:0.4:0.3:0.6.
Pigment affinity groups polymer copolymerization body dispersant is XH-9001 aqueous dispersions；Anti-sagging agent is byk410；Change Property urea solution rheological agent be DeuRheo201P.
Other are with embodiment 2.
Embodiment 11：
The method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique, is comprised the following steps that：
（1）Aluminising is carried out at steel plate position to be welded, the aluminized coating that thickness is 250 μm is obtained；
（2）Prepare self- propagating solder flux：The self- propagating solder flux is prepared from the following raw materials in parts by weight：Al 25g, Cu2O 68g, SnO214g, Zn 2.4g, CaF21.65g, raw material chooses corresponding powder, and each raw material is well mixed；
（3）By step（2）The self- propagating solder flux of preparation is in step（1）The aluminising layer surface of preparation carries out self- propagating cladding；
（4）Prepare modified epoxy：The modified epoxy includes first component and component B；
First component is prepared from the following raw materials in parts by weight：Epoxy vinyl fat resin 43g, epoxy resin 27.5g, glass flake 6.8g, the g of pigment 16.5, the g of filler 6.8, auxiliary agent 2.2g, the g of diluent 3.8；
Component B is made up of the raw material of following percentage by weight：It is the g of polyamide curing agent 48, the g of pigment 16.5, the g of filler 6.8, anti- The heavy g of agent 1.15, solvent 58g；
First component is 10 with the mass ratio of component B：1.18；
（5）The preparation of first component：It is stirred during epoxy vinyl fat resin, auxiliary agent and diluent are put into dispersion machine, is stirred Time is 29min, and mixing speed is 99r/min, is subsequently adding epoxy resin, pigment and filler, stirs 24 min, mixing speed It is 119r/min, the mixture after stirring is transferred in sand mill and is ground, fineness≤60 μm is ground to, after grinding Mixture is transferred in dispersion machine, is added glass flake and is stirred 38 min, is eventually adding diluent to gained first component Viscosity be with apply -4 glasss of viscosity meters be 59s；
（6）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；
（7）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified epoxy in mass ratio, then Deployed modified epoxy is sprayed on step（3）The self- propagating coating surface of preparation, you can composite anti-corrosive coating is obtained.
Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 290 mesh.
Step（5）The pigment of component A and the pigment of B component are epoxy iron red shop and titanium dioxide.
Step（5）The filler of component A and the filler of B component are the mixture of calcium carbonate and 1225 mesh talcum powder, talcum Powder is 4 with the mass ratio of calcium carbonate:3.
Auxiliary agent is pigment affinity groups polymer copolymerization body dispersant, 606 defoamers, anti-sagging agent and modified urea solution stream Become the mixture of agent, pigment affinity groups polymer copolymerization body dispersant：606 defoamers：Anti-sagging agent：Modified urea solution rheology The mass ratio of agent is 0.2:0.4:0.3:0.6.
Pigment affinity groups polymer copolymerization body dispersant is SP-712 aqueous dispersions；Anti-sagging agent is NUVIS BEZ 75；Modified urea solution rheological agent is DeuRheo201P.
Other are with embodiment 2.
Embodiment 12：
The method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique, is comprised the following steps that：
（1）Aluminising is carried out at steel plate position to be welded, the aluminized coating that thickness is 300 μm is obtained；
（2）Prepare self- propagating solder flux：The self- propagating solder flux is prepared from the following raw materials in parts by weight：Al 25.9g, Cu2O 70.3g, SnO214.8g, Zn 2.5g, CaF21.7g, raw material chooses corresponding powder, and each raw material is well mixed；
（3）By step（2）The self- propagating solder flux of preparation is in step（1）The aluminising layer surface of preparation carries out self- propagating cladding；
（4）Prepare modified epoxy：The modified epoxy includes first component and component B；
First component is prepared from the following raw materials in parts by weight：Epoxy vinyl fat resin 44g, epoxy resin 28.5g, glass flake 7g, the g of pigment 17, the g of filler 7, auxiliary agent 1.35g, diluent 4g；
Component B is made up of the raw material of following percentage by weight：The g of polyamide curing agent 50, the g of pigment 17, the g of filler 7, anti-settling agent 1.2 g, solvent 60g；
First component is 10 with the mass ratio of component B：1.2；
（5）The preparation of first component：It is stirred during epoxy vinyl fat resin, auxiliary agent and diluent are put into dispersion machine, is stirred Time is 30min, and mixing speed is 100r/min, is subsequently adding epoxy resin, pigment and filler, stirs 25 min, stirring speed It is 120r/min to spend, and the mixture after stirring is transferred in sand mill and is ground, and fineness≤60 μm is ground to, after grinding Mixture be transferred in dispersion machine, add glass flake and stir 40 min, be eventually adding diluent to gained first component Viscosity be with apply -4 glasss of viscosity meters be 60s；
（6）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；
（7）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified epoxy in mass ratio, then Deployed modified epoxy is sprayed on step（3）The self- propagating coating surface of preparation, you can composite anti-corrosive coating is obtained.
Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 300 mesh.
Step（5）The pigment of component A and the pigment of B component are epoxy iron red shop and trbasic zinc phosphate.
Step（5）The filler of component A and the filler of B component are the mixture of calcium carbonate and 1250 mesh talcum powder, talcum Powder is 4 with the mass ratio of calcium carbonate:3.
Auxiliary agent is pigment affinity groups polymer copolymerization body dispersant, 606 defoamers, anti-sagging agent and modified urea solution stream Become the mixture of agent, pigment affinity groups polymer copolymerization body dispersant：606 defoamers：Anti-sagging agent：Modified urea solution rheology The mass ratio of agent is 0.2:0.4:0.3:0.6.
Pigment affinity groups polymer copolymerization body dispersant is XH-9001 aqueous dispersions；Anti-sagging agent is byk410；Change Property urea solution rheological agent be DeuRheo 211F.
Other are with embodiment 2.
Embodiment 13:
Pigment is epoxy iron red shop and N330 carbon blacks.Other are with embodiment 12.
Embodiment 14:
Pigment is titanium dioxide and trbasic zinc phosphate.Other are with embodiment 12.
Embodiment 15:
Pigment is titanium dioxide and N330 carbon blacks.Other are with embodiment 12.
Embodiment 16:
Pigment is trbasic zinc phosphate and N330 carbon blacks.Other are with embodiment 12.
Embodiment 17:
Pigment is phosphorus zinc white, epoxy iron red shop and titanium dioxide.Other are with embodiment 12.
Embodiment 18:
Pigment is phosphorus zinc white, epoxy iron red shop and trbasic zinc phosphate.Other are with embodiment 12.
Embodiment 19:
Pigment is phosphorus zinc white, epoxy iron red shop and N330 carbon blacks.Other are with embodiment 12.
Embodiment 20:
Pigment is phosphorus zinc white, titanium dioxide and trbasic zinc phosphate.Other are with embodiment 12.
Embodiment 21:
Pigment is phosphorus zinc white, titanium dioxide and N330 carbon blacks.Other are with embodiment 12.
Embodiment 22:
Pigment is phosphorus zinc white, trbasic zinc phosphate and N330 carbon blacks.Other are with embodiment 12.
Embodiment 23:
Pigment is epoxy iron red shop, titanium dioxide and trbasic zinc phosphate.Other are with embodiment 12.
Embodiment 24:
Pigment is epoxy iron red shop, titanium dioxide and N330 carbon blacks.Other are with embodiment 12.
Embodiment 25:
Pigment is epoxy iron red shop, trbasic zinc phosphate and N330 carbon blacks.Other are with embodiment 12.
Embodiment 26:
Pigment is titanium dioxide, trbasic zinc phosphate and N330 carbon blacks.Other are with embodiment 12.
Embodiment 27:
Pigment is phosphorus zinc white, epoxy iron red shop, titanium dioxide and trbasic zinc phosphate.Other are with embodiment 12.
Embodiment 28:
Pigment is phosphorus zinc white, epoxy iron red shop, titanium dioxide and N330 carbon blacks.Other are with embodiment 12.
Embodiment 29:
Pigment is phosphorus zinc white, titanium dioxide, trbasic zinc phosphate and N330 carbon blacks.Other are with embodiment 12.
Embodiment 30:
Pigment is phosphorus zinc white, epoxy iron red shop, trbasic zinc phosphate and N330 carbon blacks.Other are with embodiment 12.
Embodiment 31:
Pigment is epoxy iron red shop, titanium dioxide, trbasic zinc phosphate and N330 carbon blacks.Other are with embodiment 12.
Embodiment 32:
Pigment is phosphorus zinc white, epoxy iron red shop, titanium dioxide, trbasic zinc phosphate and N330 carbon blacks.Other are with embodiment 12.
Embodiment 33:
The method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique, is comprised the following steps that：
（1）Aluminising is carried out at steel plate position to be welded, the aluminized coating that thickness is 170 μm is obtained；
（2）Prepare self- propagating solder flux：The self- propagating solder flux is prepared from the following raw materials in parts by weight：Al 18g, Cu2O 60g, SnO212g, Zn 2g, CaF21.5g, raw material chooses corresponding powder, and each raw material is well mixed；
（3）By step（2）The self- propagating solder flux of preparation is in step（1）The aluminising layer surface of preparation carries out self- propagating cladding；
（4）Prepare modified epoxy：The modified epoxy includes first component and component B；
Institute's first component is prepared from the following raw materials in parts by weight：Epoxy vinyl fat resin 40g, epoxy resin 30g, glass flake 5g, pigment 15g, filler 5g, auxiliary agent 2g, diluent 2g；
Component B is prepared from the following raw materials in parts by weight：It is polyamide curing agent 50g, pigment 17g, filler 7g, anti-settling agent 1g, molten Agent 50g；
First component is 10 with the mass ratio of component B：1.1；
（5）The preparation of first component：It is stirred during epoxy vinyl fat resin, auxiliary agent and diluent are put into dispersion machine, is stirred Time is 25min, and mixing speed is 100r/min, is subsequently adding epoxy resin, pigment and filler, stirs 20 min, stirring speed It is 115r/min to spend, and the mixture after stirring is transferred in sand mill and is ground, and fineness≤60 μm is ground to, after grinding Mixture be transferred in dispersion machine, add glass flake and stir 30 min, be eventually adding diluent to gained first component Viscosity be with apply -4 glasss of viscosity meters be 55s；
（6）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；
（7）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified epoxy in mass ratio, then Deployed modified epoxy is sprayed on step（3）The self- propagating coating surface of preparation, you can composite anti-corrosive coating is obtained.
Other are with embodiment 12.
Embodiment 34：
The method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique, is comprised the following steps that：
（1）Aluminising is carried out at steel plate position to be welded, the aluminized coating that thickness is 300 μm is obtained；
（2）Prepare self- propagating solder flux：The self- propagating solder flux is prepared from the following raw materials in parts by weight：Al 25.9g, Cu2O 70.3g, SnO214.8g, Zn 2.5g, CaF21.7g, raw material chooses corresponding powder, and each raw material is well mixed；
（3）By step（2）The self- propagating solder flux of preparation is in step（1）The aluminising layer surface of preparation carries out self- propagating cladding；
（4）Prepare modified epoxy：The modified epoxy includes first component and component B；
Institute's first component is prepared from the following raw materials in parts by weight：Epoxy vinyl fat resin 43g, epoxy resin 35g, glass flake 7g, pigment 17g, filler 7g, auxiliary agent 2.2g, diluent 4g；
Component B is prepared from the following raw materials in parts by weight：Polyamide curing agent 50g, pigment 17g, filler 7g, anti-settling agent 1.2g, Solvent 60g；
First component is 10 with the mass ratio of component B：1.2；
（5）The preparation of first component：It is stirred during epoxy vinyl fat resin, auxiliary agent and diluent are put into dispersion machine, is stirred Time is 25min, and mixing speed is 100r/min, is subsequently adding epoxy resin, pigment and filler, stirs 20 min, stirring speed It is 115r/min to spend, and the mixture after stirring is transferred in sand mill and is ground, and fineness≤60 μm is ground to, after grinding Mixture be transferred in dispersion machine, add glass flake and stir 30 min, be eventually adding diluent to gained first component Viscosity be with apply -4 glasss of viscosity meters be 55s；
（6）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；
（7）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified epoxy in mass ratio, then Deployed modified epoxy is sprayed on step（3）The self- propagating coating surface of preparation, you can composite anti-corrosive coating is obtained.
Other are with embodiment 12.
Embodiment 35：
The method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique, is comprised the following steps that：
（1）Aluminising is carried out at steel plate position to be welded, the aluminized coating that thickness is 10 μm is obtained；
（2）Prepare self- propagating solder flux：The self- propagating solder flux is prepared from the following raw materials in parts by weight：Al 16.7g, Cu2O 55.1g, SnO210.2g, Zn1.7g, CaF21.1g, raw material chooses corresponding powder, and each raw material is well mixed；
（3）By step（2）The self- propagating solder flux of preparation is in step（1）The aluminising layer surface of preparation carries out self- propagating cladding；
（4）Prepare modified epoxy：The modified epoxy includes first component and component B；
First component is prepared from the following raw materials in parts by weight：Epoxy vinyl fat resin 33g, epoxy resin 27g, glass flake 4g, pigment 13g, filler 4g, auxiliary agent 1.3g, diluent 2g；
Component B is prepared from the following raw materials in parts by weight：Polyamide curing agent 35g, pigment 13g, filler 4g, anti-settling agent 0.7g, Solvent 40g；
First component is 10 with the mass ratio of component B：1；
（5）The preparation of first component：It is stirred during epoxy vinyl fat resin, auxiliary agent and diluent are put into dispersion machine, is stirred Time is 25min, and mixing speed is 100r/min, is subsequently adding epoxy resin, pigment and filler, stirs 20 min, stirring speed It is 115r/min to spend, and the mixture after stirring is transferred in sand mill and is ground, and fineness≤60 μm is ground to, after grinding Mixture be transferred in dispersion machine, add glass flake and stir 30 min, be eventually adding diluent to gained first component Viscosity be with apply -4 glasss of viscosity meters be 55s；
（6）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；
（7）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified epoxy in mass ratio, then Deployed modified epoxy is sprayed on step（3）The self- propagating coating surface of preparation, you can composite anti-corrosive coating is obtained.
Other are with embodiment 12.
Embodiment 36：
The method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique, is comprised the following steps that：
（1）Aluminising is carried out at steel plate position to be welded, the aluminized coating that thickness is 170 μm is obtained；
（2）Prepare self- propagating solder flux：The self- propagating solder flux is prepared from the following raw materials in parts by weight：Al 18g, Cu2O 60g, SnO212g, Zn2g, CaF21.5g, raw material chooses corresponding powder, and each raw material is well mixed；
（3）By step（2）The self- propagating solder flux of preparation is in step（1）The aluminising layer surface of preparation carries out self- propagating cladding；
（4）Prepare modified epoxy：The modified epoxy includes first component and component B；
First component is prepared from the following raw materials in parts by weight：Epoxy vinyl fat resin 40g, epoxy resin 30g, glass flake 5g, pigment 15g, filler 5g, auxiliary agent 2g, diluent 2g；
Component B is prepared from the following raw materials in parts by weight：It is polyamide curing agent 50g, pigment 17g, filler 7g, anti-settling agent 1g, molten Agent 50g；
First component is 10 with the mass ratio of component B：1.1；
（5）The preparation of first component：It is stirred during epoxy vinyl fat resin, auxiliary agent and diluent are put into dispersion machine, is stirred Time is 25min, and mixing speed is 100r/min, is subsequently adding epoxy resin, pigment and filler, stirs 20 min, stirring speed It is 115r/min to spend, and the mixture after stirring is transferred in sand mill and is ground, and fineness≤60 μm is ground to, after grinding Mixture be transferred in dispersion machine, add glass flake and stir 30 min, be eventually adding diluent to gained first component Viscosity be with apply -4 glasss of viscosity meters be 55s；
（6）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；
（7）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified epoxy in mass ratio, then Deployed modified epoxy is sprayed on step（3）The self- propagating coating surface of preparation, you can composite anti-corrosive coating is obtained.
Other are with embodiment 12.
Comparative example：
（1）Prepare modified 954 epoxy resin：Modified 954 epoxy resin include first component and component B；
First component is prepared from the following raw materials in parts by weight：Epoxy silicone resin 35g, glass flake 14g, pigment 13g, filler 4g, auxiliary agent 1.3g, diluent 2g；
Component B is prepared from the following raw materials in parts by weight：Polyamide curing agent 35g, pigment 13g, filler 4g, anti-settling agent 0.7g, Solvent 40g；
First component is 10 with the mass ratio of component B：1；
（2）The preparation of first component：It is stirred during epoxy silicone resin, auxiliary agent and diluent are put into dispersion machine, during stirring Between be 20min, mixing speed is 90r/min, is subsequently adding pigment and filler, stirs 15min, and mixing speed is 110r/min, Mixture after stirring is transferred in sand mill and is ground, be ground to fineness≤60 μm, by the mixture transfer after grinding Into dispersion machine, add glass flake and stir 20 min, be eventually adding diluent to the viscosity of gained first component be with apply- 4 glasss of viscosity meters are 50s；
（3）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；
（4）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified 954 asphalt mixtures modified by epoxy resin in mass ratio Fat, then deployed modified 954 epoxy resin are sprayed on apparatus surface to be sprayed, you can corrosion-inhibiting coating is obtained.
Glass flake is the glass flake being surface-treated by silane coupler, and granularity is 200 mesh.
Step（1）The pigment of middle component A and the equal pigment of the pigment of B component are phosphorus zinc white.
Step（1）The filler of middle component A and the filler of B component are the mixture of calcium carbonate and 1000 mesh talcum powder, sliding Stone flour is 4 with the mass ratio of calcium carbonate:3.
Auxiliary agent is pigment affinity groups polymer copolymerization body dispersant, 606 defoamers, anti-sagging agent and modified urea solution stream Become the mixture of agent, pigment affinity groups polymer copolymerization body dispersant：606 defoamers：Anti-sagging agent：Modified urea solution rheology The mass ratio of agent is 0.2:0.4:0.3:0.6.
Pigment affinity groups polymer copolymerization body dispersant is XH-9001 aqueous dispersions；Anti-sagging agent is NUVIS BEZ 75；Modified urea solution rheological agent is DeuRheo201P.
Diluent is made up of the raw material of following weight portion：5 parts of dimethylbenzene, 4 parts of n-butanol, 1 part of propylene glycol methyl ether acetate； Solvent is made up of the raw material of following weight portion：7 parts of dimethylbenzene, 3 parts of butanol；Anti-settling agent is polyamide wax anti-settling agent 6900.
Property indices reference value of the invention is as follows：
Go as can be seen from the above table, impact resistance of the present invention and adhesion performance are excellent, alleviate colliding with for plant equipment and receive Damage situation, and antiseptic property is considerably beyond commercial like product, is a kind of preferable epoxies anticorrosive paint, is applicable to various The application application of plant equipment product.
Above-described is only the preferred embodiment of the present invention, it is noted that for a person skilled in the art, Under the premise of general idea of the present invention is not departed from, some changes and improvements can also be made, these should also be considered as of the invention Protection domain.

Claims (8)

1. the method that composite anti-corrosive coating is prepared using self- propagating melting and coating technique, it is characterised in that：Comprise the following steps that：
（1）Aluminising is carried out at steel plate position to be welded, the aluminized coating that thickness is for 10-300 μm is obtained；
（2）Prepare self- propagating solder flux：The self- propagating solder flux is prepared from the following raw materials in parts by weight：Al 16.7-25.9 parts, Cu2O 55.1-70.3 parts, SnO210.2-14.8 parts, Zn 1.7-2.5 parts, CaF21.1-1.7 parts, raw material chooses corresponding powder End, and each raw material is well mixed；
（3）By step（2）The self- propagating solder flux of preparation is in step（1）The aluminising layer surface of preparation carries out self- propagating cladding；
（4）Prepare modified epoxy：The modified epoxy includes first component and component B；
The first component is prepared from the following raw materials in parts by weight：31-44 parts of epoxy vinyl fat resin, epoxy resin 27-35 Part, glass flake 4-7 parts, pigment 13-17 parts, filler 4-7 parts, auxiliary agent 1.3-2.2 parts, diluent 2-4 parts；
The component B is prepared from the following raw materials in parts by weight：Polyamide curing agent 35-50 parts, pigment 13-17 parts, filler 4- 7 parts, anti-settling agent 0.7-1.2 parts, solvent 40-60 parts；
The first component is 10 with the mass ratio of component B：（1-1.2）；
（5）The preparation of first component：It is stirred during epoxy vinyl fat resin, auxiliary agent and diluent are put into dispersion machine, is stirred Time is 20-30min, and mixing speed is 90-100r/min, is subsequently adding epoxy resin, pigment and filler, stirs 15-25 Min, mixing speed is 110-120r/min, the mixture after stirring is transferred in sand mill and is ground, and is ground to fineness ≤ 60 μm, the mixture after grinding is transferred in dispersion machine, adds glass flake and stir 20-40 min, be eventually adding Diluent to the viscosity of gained first component be with apply -4 glasss of viscosity meters be 50-60s；
（6）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；
（7）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified epoxy in mass ratio, then Deployed modified epoxy is sprayed on step（3）The self- propagating coating surface of preparation, you can composite anti-corrosive coating is obtained.
2. the method that utilization self- propagating melting and coating technique according to claim 1 prepares composite anti-corrosive coating, it is characterised in that： Comprise the following steps that：
（1）Aluminising is carried out at steel plate position to be welded, the aluminized coating that thickness is 170 μm is obtained；
（2）Prepare self- propagating solder flux：The self- propagating solder flux is prepared from the following raw materials in parts by weight：18 parts of Al, Cu2O 60 Part, SnO212 parts, 2 parts of Zn, CaF21.5 parts, raw material chooses corresponding powder, and each raw material is well mixed；
（3）By step（2）The self- propagating solder flux of preparation is in step（1）The aluminising layer surface of preparation carries out self- propagating cladding；
（4）Prepare modified epoxy：The modified epoxy includes first component and component B；
The first component is prepared from the following raw materials in parts by weight：40 parts of epoxy vinyl fat resin, 30 parts of epoxy resin, glass 5 parts of scale, 15 parts of pigment, 5 parts of filler, 2 parts of auxiliary agent, 2 parts of diluent；
The component B is prepared from the following raw materials in parts by weight：It is 50 parts of polyamide curing agent, 17 parts of pigment, 7 parts of filler, anti-settling 1 part of agent, 50 parts of solvent；
The first component is 10 with the mass ratio of component B：1.1；
（5）The preparation of first component：It is stirred during epoxy vinyl fat resin, auxiliary agent and diluent are put into dispersion machine, is stirred Time is 25min, and mixing speed is 100r/min, is subsequently adding epoxy resin, pigment and filler, stirs 20 min, stirring speed It is 115r/min to spend, and the mixture after stirring is transferred in sand mill and is ground, and fineness≤60 μm is ground to, after grinding Mixture be transferred in dispersion machine, add glass flake and stir 30 min, be eventually adding diluent to gained first component Viscosity be with apply -4 glasss of viscosity meters be 55s；
（6）The preparation of component B：By in each raw material addition agitator tank of component B, stir, it is then mixed by what is stirred Compound strainer filtering, you can obtain component B；
（7）First component and component B are stirred respectively, and mixing preparation uniformly obtains final product modified epoxy in mass ratio, then Deployed modified epoxy is sprayed on step（3）The self- propagating coating surface of preparation, you can composite anti-corrosive coating is obtained.
3. the method that utilization self- propagating melting and coating technique according to claim 1 prepares composite anti-corrosive coating, it is characterised in that： The glass flake is the glass flake being surface-treated by silane coupler, and granularity is 200-300 mesh.
4. the method that utilization self- propagating melting and coating technique according to claim 1 prepares composite anti-corrosive coating, it is characterised in that： The step（5）The pigment of component A and the pigment of B component are phosphorus zinc white, epoxy iron red shop, titanium dioxide, trbasic zinc phosphate, N330 carbon blacks In one or more.
5. the method that utilization self- propagating melting and coating technique according to claim 1 prepares composite anti-corrosive coating, it is characterised in that： The step（5）The filler of component A and the filler of B component are the mixture of 1000-1250 mesh talcum powder and calcium carbonate, talcum Powder is 4 with the mass ratio of calcium carbonate:3.
6. the method that utilization self- propagating melting and coating technique according to claim 1 prepares composite anti-corrosive coating, it is characterised in that： The auxiliary agent is pigment affinity groups polymer copolymerization body dispersant, 606 defoamers, anti-sagging agent and modified urea solution rheological agent Mixture, pigment affinity groups polymer copolymerization body dispersant：606 defoamers：Anti-sagging agent：Modified urea solution rheological agent Mass ratio is 0.2:0.4:0.3:0.6.
7. the method that utilization self- propagating melting and coating technique according to claim 1 prepares composite anti-corrosive coating, its feature exists In：The pigment affinity groups polymer copolymerization body dispersant be XH-9001 aqueous dispersions, SP-712 aqueous dispersions, One or more in DP490 aqueous dispersions；Anti-sagging agent is NUVIS BEZ 75, byk410, the one kind or several in AT720 Kind；Modified urea solution rheological agent is DeuRheo201P, one or more in DeuRheo 202P, DeuRheo 211F.
8. the method that utilization self- propagating melting and coating technique according to claim 1 prepares composite anti-corrosive coating, it is characterised in that： The diluent is made up of the raw material of following weight portion：5 parts of dimethylbenzene, 4 parts of n-butanol, 1 part of propylene glycol methyl ether acetate；It is described Solvent is made up of the raw material of following weight portion：7 parts of dimethylbenzene, 3 parts of butanol；The anti-settling agent is polyamide wax anti-settling agent 6900.
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